Mining explosion-proof high-voltage frequency converter

• Main Authors: XU ZHANJUN, DONG YIHENG, BAI JUN, LUO ZIYONG, LI RUICHANG
• Format: Patent
• Language: Chinese; English
• Published: 19.06.2020
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROL OR REGULATION THEREOF; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

The utility model discloses a mining explosion-proof high-voltage frequency converter. The utility model discloses an explosion-proof phase-shifting transformer, which comprises an explosion-proof shell, a phase-shifting transformer, a conversion circuit, a control unit and a cooling system, the alternating current input end of the power unit is connected with the three-phase output end of the low-voltage side of the phase-shifting transformer through a cable, the explosion-proof shell sequentially comprises a transformer cavity, a power unit cavity and a control and cooling cavity in the longitudinal direction, and the phase-shifting transformer, the conversion circuit and the control unit are arranged in the corresponding transformer cavity, the power unit cavity and the control cavity respectively. A partition plate between the transformer cavity and the power unit cavity comprises a cable via hole, and a cable penetrates through the cable via hole to be connected with the phase-shifting transformer and th